EP1420384A2 - System mit einem Bildschirm und einer externen Stromversorgungseinheit - Google Patents
System mit einem Bildschirm und einer externen Stromversorgungseinheit Download PDFInfo
- Publication number
- EP1420384A2 EP1420384A2 EP03024370A EP03024370A EP1420384A2 EP 1420384 A2 EP1420384 A2 EP 1420384A2 EP 03024370 A EP03024370 A EP 03024370A EP 03024370 A EP03024370 A EP 03024370A EP 1420384 A2 EP1420384 A2 EP 1420384A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- power supply
- screen
- supply unit
- signaling
- operating parameters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
Definitions
- the invention relates to a system with a screen, in particular Flat screen, and an external power supply unit, the one with a connector to the screen can be connected to supply the screen with a DC.
- Such systems with one screen and one external Power supply unit are used especially in flat screens used because these with low voltages of for example 12 V, 14 V or 16 V can be operated.
- the external power supply units are on the one hand the power supply is usually connected to 230 V or 110 V, on the other hand, there is a two-wire connection to the Screen, this cable with a plug connection with connected to the screen so that the power supply unit and the screen can be separated easily can.
- Another operating parameter is the maximum load capacity the power supply unit. Because different devices too have different power requirements are the power supply units on the respective maximum power requirement designed. When using a power supply unit, that cannot provide sufficient performance this will usually overheat, which will take some time destruction of the power supply unit. Also in In this case, the manufacturer is responsible for a technical error blamed who never existed, but only there is an incorrect combination of the devices.
- the object of the invention is therefore a system with a Screen and an external power supply unit, which ensures that the screen only with a suitable power supply unit is operated.
- the advantage of the system according to the invention is that unsuitable power supply units in a simple manner can be recognized, for this purpose only a few additional devices are required, the manufacturing costs are not increase significantly. If the signaling over the two provided for power supply, the same cables and plugs are used as before be used. Even if the level is too low Power supply unit provided voltage is this usually always sufficient for an error message, for example via a loudspeaker or an LED issue.
- a so-called on-screen display is a more convenient embodiment (OSD) is provided as an error reporting means, which in the rule anyway for setting the operating parameters of the Screen such as the brightness or the position setting is available.
- OSD on-screen display
- the signaling was superimposed by the DC voltage AC signals that have modulated information about the operating parameters included.
- the screen Demodulator to be provided for demodulating the signaling.
- the Screen signaling means, the information or a Can transmit control signal to the power supply unit For example, this allows the screen set from operating parameters of the power supply unit become.
- Figure 1 shows a typical arrangement of a flat screen 1 and a power supply unit 2, which has a Cable 3 are interconnected.
- the power supply unit is also via another cable 4 with the Power network connected, for example a voltage of Provides 230 V.
- the cable 3 between the power supply unit 2 and the Flat screen 1 could act as an antenna via the Interference frequencies are emitted.
- the cable 3 is over a Connector 5 connected to the flat screen 1.
- the functional units of the arrangement are shown in FIG Figure 1 shown.
- the power supply unit 2 has a signaling unit 6, which after connecting the Power supply unit 2 to the power grid and commissioning of the flat screen 1 operating parameters on the flat screen 1 which signals the tension, the resilience and include the type of power supply unit 2.
- the flat screen 1 has a demodulator / decoder 7, which decouples and processes the transmitted information.
- the demodulator / decoder 7 has comparison means 8 connected, which the transmitted information with stored Compare values to see if operation with the connected power supply unit 2 is permissible. If the comparison means 8 determine that an admissibility is not given, they give via error reporting means 9, 10 or 11 a signal indicating the error.
- suitable Error reporting means are a light emitting diode 9, a loudspeaker 10 or else a display on a display unit 11, which is usually from a connected computer transmitted and displayed image. In doing so preferably the means used, the so-called on-screen display control to display parameters adjust.
- the voltage provided is much too high, it may be necessary to avoid for safety reasons to damage the display unit 11, while an LED 9 or a speaker 10 easily can also be operated with the excessive voltage.
- a light-emitting diode 9 could be provided, for example be that by an ever higher flashing frequency Alert users to the presence of the error becomes.
- FIG. 2 does not show how signaling could take place in the opposite direction.
- a signaling device on the side of the flat screen 1 would be necessary, which transmits information via the same line as the signaling from the power supply unit 2 to the flat screen 1.
- a different frequency could be provided so that the first and the second frequency overlap and the frequency that contains the information intended for them is filtered out by the power supply unit 2 or the flat screen 1.
- FIG. 3 shows a signaling diagram of how it can proceed at the start of operation.
- the voltage U N supplied by the power supply unit 2 is 12 V.
- This is superimposed on an AC voltage that contains the modulated information that is to be transmitted.
- the sawtooth voltage shown which could also be a sine voltage or a square wave voltage, has an amplitude of 0.5-1.2 V.
- the actual operation of the screen is not affected by this.
- the signaling takes place, for example, in the first seconds of operation.
- the presence of the superimposed AC voltage means, for example, a logic 1, while the absence of a superimposed AC voltage means a logic 0.
- the information is contained in the transmitted bit sequence.
- many variants are possible here which are known to the person skilled in the art and can be selected in the respective application. In particular, an assignment of a certain frequency or a certain amplitude to an item of information is to be considered.
- the frequency of the modulated AC voltage is shown case 100 Hz corresponding to a period of 10 msec.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Power Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Television Receiver Circuits (AREA)
- Dc-Dc Converters (AREA)
- Control Of Voltage And Current In General (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
Description
- Figur 1
- eine Anordnung eines Bildschirms mit einer externen Stromversorgungseinheit,
- Figur 2
- eine schematische Darstellung mit den Funktionseinheiten des Bildschirms und der Stromversorgungseinheit und
- Figur 3
- ein Signalisierungsdiagramm einer Informationsübertragung von der Stromversorgungseinheit zu dem Bildschirm.
In der Figur 2 ist nicht dargestellt, wie eine Signalisierung in die umgekehrte Richtung erfolgen könnte. Dazu wäre eine Signalisierungsvorrichtung auf Seiten des Flachbildschirms 1 notwendig, die eine Information über die gleiche Leitung überträgt wie die Signalisierung von der Stromversorgungseinheit 2 zum Flachbildschirm 1. Dazu könnte beispielsweise eine andere Frequenz vorgesehen werden, so daß sich die erste und die zweite Frequenz überlagern und von der Stromversorgungseinheit 2 bzw. dem Flachbildschirm 1 diejenige Frequenz ausgefiltert wird, die die für sie bestimmte Information beinhaltet.
- 1
- Flachbildschirm
- 2
- Stromversorgungseinheit
- 3
- Kabel
- 4
- Kabel
- 5
- Steckverbinder
- 6
- Signalisierungsvorrichtung
- 7
- Demodulator
- 8
- Vergleichsmittel
- 9
- Leuchtdiode
- 10
- Lautsprecher
- 11
- Anzeigeeinheit
- UN
- Nennspannung
Claims (10)
- System mit einem Bildschirm, insbesondere Flachbildschirm, und einer externen Stromversorgungseinheit (2), die mittels eines Steckverbinders (5) mit dem Bildschirm (1) verbindbar ist, zur Versorgung des Bildschirms (1) mit einer Gleichspannung,
dadurch gekennzeichnet, daß
die Stromversorgungseinheit (2) Signalisierungsmittel (6) zur Signalisierung von Betriebsparametern aufweist und der Bildschirm Vergleichsmittel (8) zum Vergleich der signalisierten Betriebsparameter mit gespeicherten Betriebsparametern und mit den Vergleichsmitteln (8) verbundenen Fehlermeldemitteln (9, 10, 11) zur Anzeige unzulässiger Abweichungen der signalisierten Betriebsparameter von den gespeicherten Betriebsparametern aufweist. - System nach Anspruch 1,
dadurch gekennzeichnet, daß
die Signalisierung durch der Gleichspannung überlagerte Wechselspannungssignale erfolgt, die eine modulierte Information über die Betriebsparameter enthalten. - System nach einem der Ansprüche 1 bis 2,
dadurch gekennzeichnet, daß
ein Demodulator (7) vorgesehen ist zur Demodulierung der Signalisierung. - System nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß
die Signalisierung nur bei Inbetriebnahme des Bildschirms (1) und der Stromversorgungseinheit (2) erfolgt, vorzugsweise innerhalb eines Zeitraumes kürzer als eine Minute nach Inbetriebnahme. - System nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß
die Anzeige durch die Fehlermeldemittel (9, 10, 11) akustisch und/oder optisch erfolgt. - System nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß
die Anzeige durch die Fehlermeldemittel (11) durch eine Bildschirmanzeige erfolgt. - System nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß
die signalisierten Betriebsparameter zumindest die Spannung und maximale Belastbarkeit sind. - System nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß
Signalisierungsmittel vorgesehen sind zur Signalisierung von Betriebsparametern vom Bildschirm (1) zur Stromversorgungseinheit (2). - System nach Anspruch 8,
dadurch gekennzeichnet, daß
durch die Signalisierung an die Stromversorgungseinheit (2) Betriebsparameter der Stromversorgungseinheit einstellbar sind. - Bildschirm zum Betrieb in einem System nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß die Vergleichsmittel und die Fehlermeldemittel dazu eingerichtet sind einen Fehler anzuzeigen, wenn bei Inbetriebnahme keine Signalisierung von Betriebsparametern von einer externen Stromversorgungseinheit erfolgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253386A DE10253386B3 (de) | 2002-11-15 | 2002-11-15 | System mit einem Bildschirm und einer externen Stromversorgungseinheit |
DE10253386 | 2002-11-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1420384A2 true EP1420384A2 (de) | 2004-05-19 |
EP1420384A3 EP1420384A3 (de) | 2009-11-11 |
Family
ID=32115542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03024370A Withdrawn EP1420384A3 (de) | 2002-11-15 | 2003-10-24 | System mit einem Bildschirm und einer externen Stromversorgungseinheit |
Country Status (6)
Country | Link |
---|---|
US (1) | US7113102B2 (de) |
EP (1) | EP1420384A3 (de) |
KR (1) | KR100595905B1 (de) |
CN (1) | CN1289915C (de) |
DE (1) | DE10253386B3 (de) |
TW (1) | TWI233719B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8434116B2 (en) * | 2004-12-01 | 2013-04-30 | At&T Intellectual Property I, L.P. | Device, system, and method for managing television tuners |
JP4584743B2 (ja) * | 2005-03-10 | 2010-11-24 | 京セラミタ株式会社 | 動作制御システム及び画像形成装置 |
US8558711B2 (en) * | 2005-11-18 | 2013-10-15 | Simplexgrinnell Lp | System for testing NAC operability using backup power |
DE102008060274A1 (de) | 2008-12-03 | 2010-06-10 | Fujitsu Siemens Computers Gmbh | Geräteanordnung umfassend ein elektronisches Gerät und ein Netzteil sowie Verfahren zum Schalten eines Netzteils |
CN103064033A (zh) * | 2011-10-19 | 2013-04-24 | 鸿富锦精密工业(深圳)有限公司 | 电源测试电路 |
US9645183B2 (en) * | 2014-08-20 | 2017-05-09 | At&T Intellectual Property I, L.P. | Methods, systems, and products for power management in cable assemblies |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6058034A (en) * | 1998-10-19 | 2000-05-02 | Dell Usa Lp | Current converter and source identification and detection |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5570002A (en) * | 1994-02-18 | 1996-10-29 | Ergo Mechanical Systems, Incorporated | Universal power-supply connection system for multiple electronic devices |
US6054846A (en) * | 1994-02-18 | 2000-04-25 | Ergo Mechanical Systems, Incorporated | Universal power-supply connection system for multiple electronic devices, and devices for use therewith |
KR19990006180A (ko) | 1997-06-30 | 1999-01-25 | 김영환 | 반도체 소자의 디펙트 모니터링 방법 및 이를 이용한 페일 메카니즘 추적 방법 |
US6842868B1 (en) * | 1999-09-17 | 2005-01-11 | Nortel Networks Limited | Connection integrity monitor for digital selection circuits |
US7474276B2 (en) * | 2000-06-20 | 2009-01-06 | Olympus Optical Co., Ltd. | Display system and microdisplay apparatus |
JP2002108513A (ja) | 2000-07-27 | 2002-04-12 | Olympus Optical Co Ltd | 表示システムおよびディスプレイ装置 |
JP2002041188A (ja) | 2000-07-27 | 2002-02-08 | Olympus Optical Co Ltd | 小型表示装置および表示システム |
KR100374154B1 (ko) | 2000-06-24 | 2003-02-26 | 장학선 | 전원신호 및 데이터신호를 송수신하기 위한 시스템 |
US6913477B2 (en) * | 2002-03-01 | 2005-07-05 | Mobilewise, Inc. | Wirefree mobile device power supply method & system with free positioning |
US7392068B2 (en) * | 2002-03-01 | 2008-06-24 | Mobilewise | Alternative wirefree mobile device power supply method and system with free positioning |
-
2002
- 2002-11-15 DE DE10253386A patent/DE10253386B3/de not_active Expired - Fee Related
-
2003
- 2003-10-24 EP EP03024370A patent/EP1420384A3/de not_active Withdrawn
- 2003-11-12 TW TW092131649A patent/TWI233719B/zh not_active IP Right Cessation
- 2003-11-13 KR KR1020030080227A patent/KR100595905B1/ko not_active IP Right Cessation
- 2003-11-14 CN CNB200310120460XA patent/CN1289915C/zh not_active Expired - Fee Related
- 2003-11-17 US US10/715,022 patent/US7113102B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6058034A (en) * | 1998-10-19 | 2000-05-02 | Dell Usa Lp | Current converter and source identification and detection |
Also Published As
Publication number | Publication date |
---|---|
TW200414646A (en) | 2004-08-01 |
US7113102B2 (en) | 2006-09-26 |
CN1289915C (zh) | 2006-12-13 |
KR20040042870A (ko) | 2004-05-20 |
DE10253386B3 (de) | 2004-07-15 |
CN1521514A (zh) | 2004-08-18 |
US20040100462A1 (en) | 2004-05-27 |
EP1420384A3 (de) | 2009-11-11 |
KR100595905B1 (ko) | 2006-07-05 |
TWI233719B (en) | 2005-06-01 |
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